Put Metal Roof On Wet Shingles

Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles.

Put metal roof on wet shingles.

Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. Shingles can slip off installing roofing shingles on top of a wet roof can make your new roofing materials slip off and become damaged. A metal roof can be installed over a shingle roof but you ll need to make sure the plywood under your shingle roof is in good enough shape to handle a new metal roof over top. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. This is by far the most common way to install a metal roof. However you ll want to check with your local building department before you make any decisions.

3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. Roof replacement is expensive. Yes you can install a metal roof over shingles. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.

However before you decide on reroofing with a metal roof you have to keep in mind that there are specific conditions that make reroofing with a. Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof. This shortens the effective life of the shingles and can adversely affect the roof sheathing. About prime roofing.

The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacture has testing for their roofing panels and then the metal is installed to the purlins. This moisture can lead to mold and mildew forming underneath the shingles. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Install the roofing screws vertically along each rib in the panel.

Aside from limited visibility especially during heavy rain the roof slope wet and slippery surface and the oncoming rain will heighten the chances of someone slipping and falling. This method has its benefits as well. 5install metal panels or shingles.